Satellite view of Greece:

Satellite map of Greece and of all groups of Greek Islands

The Twelve Islands", denotes an island group in the southeastern Aegean Sea

The Dodecanese (Greek: Dodekánisa, literally 'twelve islands') are a group of 15 larger plus 150 smaller Greek islands in the southeastern Aegean Sea, off the coast of Asia Minor (Turkey), of which 26 are inhabited. The most historically important and well-known is Rhodes, which has been the area's dominant island since Antiquity. Of the others, Kos and Patmos are historically the more important.